JPS6330808Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a clip for attaching a trim board to the body of an automobile.

Conventional technology Conventionally, in order to attach a trim board to the body,
For example, a metal clip attached to a trim board mounting hole was pushed into a synthetic resin bushing attached to a body mounting hole. This utilizes the elasticity of metal and is relatively easy to install and remove, but the metal clips tend to rust and often spoil the appearance of the trim board.

In order to solve this problem, another example of a synthetic resin clip has been proposed, which has an anchor-shaped leg at the tip of the shaft and is attached to the trim board through a double flange at the rear end of the shaft. After the clip is attached to the trim board, its anchor-shaped legs are inserted into the mounting holes in the body so that the legs spread within the body and engage its inner surface, thereby removing the clip from the body. Reliably prevent it from coming off. However, this is a disadvantage when attempting to remove the trim board during maintenance work. When attempting to pull out the clip, the anchor-shaped legs provided significant resistance and could damage the trim board.

In order to solve this problem, Japanese Utility Model Publication No. 56-12404 discloses a male member made of synthetic resin that is designed to be attached to the trim board side, and a male member made of synthetic resin that is designed to be attached to the body side. a female member, the female member having an axial blind hole for receiving the shaft of the male member, and an enlarged head protruding in the axial direction from the bottom of the blind hole; A clip is described at the tip of the shaft portion, which is provided with an end hole that extends in the axial direction to receive the head and has a circumferential groove formed on the inner surface to fit with the enlarged head. This clip is preferred because it is easy to attach and easy to remove.

Problems to be Solved by the Invention However, even in the above clip, the body locking claw provided on the female member is difficult to bend, so the locking claw is scraped at the edge of the body mounting hole, weakening the locking function. It was hot. In addition, the mounting hole on the body has a forward punch direction and a reverse punch direction depending on the orientation during punching.In the forward punch direction, insertion and locking are smooth and stable, whereas in the reverse punch direction, insertion and locking are smooth and stable. In this case, the insertion is difficult and may get stuck in the middle, making it impossible to obtain complete fixation, and this also impairs the close contact between the flange of the female member and the body surface, making it impossible to expect a sealing effect. It was hot.

Accordingly, an object of the present invention is to provide a two-part clip that prevents the locking pawls from being scraped when attached to the body and can be securely attached even in the reverse punch direction.

Means for Solving the Problems In order to achieve the above object, in the clip according to the present invention, the locking pawl for attaching the female member to the body is attached to the female member main body through a slit in the radial direction, and When the male and female members are connected, the shaft portion of the male member is made smaller in diameter at a portion corresponding to the locking pawl to form a gap between the inner surface of the blind hole in the female member and the smaller diameter in the male member. A stepped portion is formed between the shaft portion and a shaft portion in the distal direction that is continuous with the shaft portion, and a projection protruding inward in the radial direction that engages with the stepped portion is formed in the blind hole of the female member. It is characterized by being

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figure 1 shows trim board 1 and body 2.
This figure shows how the clip 3 according to the present invention is used to attach the clip to the clip.The clip 3 according to the present invention is a two-part clip consisting of a male member 4 made of synthetic resin and a female member 5 made of synthetic resin. The male member 4 is fixed to the trim board through a mounting hole 6 formed in the trim board 1 (see also FIG. 1a), and the main body of the female member 5 is inserted into the mounting hole of the body 2. The male member 4 is inserted into the female member 5 to be connected to each other.

Figures 2a-c show details of the male member 4.
The male member 4 has a connecting shaft 10, and one end of this shaft 10 is provided with a first flange 11. A second flange 12 having a larger diameter than the first flange 11 is provided inwardly from the first flange 11 . The distance between these flanges is adapted to the thickness of the mounting plate to which the clip is mounted, for example the trim board 1 shown in FIG. 1a. However, in order to be compatible with boards of other thicknesses, it is preferable to provide a pair of protrusions 13, 13 at diametrically opposed locations on the second flange 12. 2 flange 1
The board can be supported by the flexure of 2.

The mounting hole 6 of the trim board 1 has large and small holes 8 and 9 connected by a connecting slit 7, as shown in FIG. 1a.
To attach the male member 4, pass the first flange 11 through the large hole 8, slide the slit 7, position the connecting shaft 10 in the small hole 9, and then attach the first flange 11, the second flange 11, Attach the male member 4 so as to sandwich the trim board 1 at 12 (see FIG. 1).
Therefore, the diameter of the first flange 11 is smaller than the large hole 8 and larger than the small hole 9, and the second flange 12 has a larger diameter than the large hole 8.

A shaft portion 15 extends from the second flange 12 . The shaft portion 15 has a small diameter at the base, then a large diameter, and tapers toward the tip. The small diameter portion 16 is a blind hole in the female member 4 (described later)
A gap is formed between the inner wall of the Also, large diameter part 1
The diameter of 7 is equal to or slightly smaller than the inner diameter of the blind hole, and there is a stepped portion 18 between the small diameter portion 16 and the large diameter portion 17.
is formed. At the tip of the shaft portion 15, an end hole 19 is formed that extends in the axial direction from the tip toward the base, and a circumferential groove 20 is formed on the inner surface of the end hole 19.

Details of the female member 5 are shown in Figures 3a-d. The female member 5 includes a bullet-shaped main body 22 and a flange 23 integrally formed at the end of the main body 22.
It is equipped with This female member 5 has a flange 23
A blind hole 24 is provided from the center toward the main body 22 , and a projection 25 extending in the axial direction is formed from the bottom of the blind hole 24 , and its head 26 is located in the end hole 19 of the shaft 15 of the male member 4 . It is enlarged to fit into the circumferential groove 20. Therefore, when the shaft portion 15 of the male member 4 is inserted into the blind hole 24 of the female member 5, the enlarged head 26 is inserted into the shaft portion 1.
The male and female members 4 and 5 are connected to each other by fitting into the circumferential groove 20 through the end hole 19 of 5. Because of this connection,
The inner diameter of the circumferential groove 20 and the outer diameter of the enlarged head 26 are made almost the same, and the inner diameter of the end hole 19 of the shaft portion 15 is made the same as that of the enlarged head 26.
It is preferable to make it slightly smaller.

The inner surface of the blind hole 24 of the female member 5 has protrusions 28 at two diametrically opposed positions corresponding to the stepped portion 18 when the shaft portion 15 of the male member 4 is inserted.
is formed. Therefore, the shaft portion 1 of the male member 4
5 is inserted into the blind hole 24 of the female member 5, the stepped portion 18 of the shaft portion 15 engages with the protrusion 28, so that the male member and the female member can be connected at this portion as well.

On the outside of the main body portion 22 of the female member 5, locking claws 29, 29 are formed at two diametrically opposed locations. This locking pawl 29 cooperates with the lower surface of the flange 23 to fix the female member 5 to the body 2 (FIG. 1). The lower surface of the flange 23 is formed into a suction cup shape, and when fixed by the locking pawl 29, it comes into close contact with the body 2 and seals the mounting hole. The locking claws 29, 29 are located at two points in the diameter direction perpendicular to the projections 28, 28 on the inner surface of the blind hole 24, and the locking claws 29 and the main body portion 22 of the female member
A slit 30 is provided between the two. Therefore, the locking claws 29 can be easily bent inward, and the insertion operation when attaching the female member 5 to the body can be performed very easily.

In FIGS. 4a and 4b, the shaft portion 15 of the male member 4 is connected to the female member 5.
The figure shows how both members are connected to each other by being inserted into the blind hole 24 of the member. As is clear from this figure, the male member 4 is connected to the female member 5 at two points. One of them is the engagement between the end hole 19 (and thus the circumferential groove 20) of the shaft portion 15 of the male member and the protrusion 25 (and thus the enlarged head 26) of the female member. The other one is the engagement between the stepped portion 18 of the male member shaft portion 15 and the two protrusions 28 of the female member blind hole 24. Therefore, the connecting force between the two members is maintained sufficiently high and the two members are connected at two points, so that the connection will not come off even if a pulling force is applied in an oblique direction. Therefore, the connection will not come off even if it rattles due to vibrations from the car. However, the connection can be removed by pulling the male member 4 (or trim board 1) straight against the female member 5 (or body 2) with strong force.

Figures 5a, b and c show variations of the male member. In this example, no protrusion is formed on the second flange 12' of the male member 4', and instead of the protrusion, both side edges of the second flange 12' are formed on the first flange 11 as shown in FIG. 5a. It has a curved shape. As a result, in the same way as when the protrusion is provided, even a board having a thickness lower than the height of the connecting shaft 10 or a board slightly thicker than the height can be supported by the board by the flexure of the second flange 12'. This will prevent it from rattling. FIG. 5c shows how the male member 4' is attached to the trim board 1.
As shown in this figure, the male member 4' is securely attached to the board 1. Note that the second flange is the same as the previous embodiment except for the shape of the second flange, so a description thereof will be omitted.

Effects of the invention According to the clip of the invention, the locking pawl for attaching the female member to the body is attached to the female member main body through a slit in the radial direction, and the shaft portion of the male member When the two members are connected, the diameter of the portion corresponding to the locking pawl is reduced to form a gap between the inner surface of the blind hole of the female member, and the portion is continuous with the small diameter shaft portion of the male member. A stepped portion is formed between the shaft portion in the distal direction, and a projection protruding inward in the radial direction that locks into the stepped portion is formed in the blind hole of the female member. It easily bends inward when inserted, prevents it from being scraped by the edge of the mounting hole in the mounting body, and can be installed without getting stuck in the middle even if the mounting hole is punched in the opposite direction. The force for connection may be weak, yet the strength of the connection is extremely high. Therefore, even if the two members shake due to vibrations of the vehicle, the connection will not come off.
However, there is also the advantage that the connection can be easily removed by pulling the male member straight out along the axis of the female member.

[Brief explanation of drawings]

Figure 1 is a front view showing how the trim board is connected to the body using the clip according to the present invention, Figure 1a is a diagram showing the attachment hole of the trim board, and Figures 2 a to c are diagrams showing the male member. , figure a is a front view, figure b is a half-sectional side view, figure c is figure b's c.
Figures 3 a to 3 d are views showing the female member, Figure 3 a is a half-sectional front view, Figure b is a side sectional view, and Figure 3 c is a line cc of Figure b. Figure 4a is a partially sectional front view of the clip in the connected state, Figure 4b is a partial sectional side view of the clip in the connected state, and Figures 5a, b and c are male and female clips. A modification of the member is shown, in which Figure a is a half-sectional side view of the male member, Figure b is a front view, and Figure c is a side view of the clip in a connected state. DESCRIPTION OF SYMBOLS 1... Trim board, 2... Body, 3... Clip, 4... Male member, 5... Female member, 6... Trim board mounting hole, 15... Male member shaft portion, 18
...Stepped portion, 19... End hole, 20... Circumferential groove, 22
... Female member main body, 24 ... Blind hole, 25 ... Protrusion, 26 ... Enlarged head, 29 ... Locking claw, 30 ...
...Slit.

Claims (1)

[Scope of utility model registration request] It includes a male member made of synthetic resin that is adapted to be attached to the trim board side, and a female member made of synthetic resin that is adapted to be attached to the body side, and this female member is attached to the shaft portion of the male member. and an enlarged head protruding from the bottom surface of the blind hole in the axial direction. In a clip that is provided with an end hole having a circumferential groove formed on the inner surface to fit with the enlarged head, and that connects both members to each other by inserting the shaft of the male member into the blind hole of the female member, the female member A locking pawl for attaching the female member to the body is attached to the female member main body through a slit in the radial direction, and the shaft portion of the male member corresponds to the locking pawl when the male and female members are connected. The portion is made small in diameter to form a gap with the inner surface of the blind hole of the female member, and a stepped portion is formed between the small diameter shaft portion of the male member and the shaft portion in the distal direction that is continuous with the portion. A clip characterized in that a blind hole of the female member is formed with a protrusion projecting inward in the radial direction that engages with the stepped portion.